![]() The work by both teams suggests that using neutral atoms to create quantum circuits is a viable option for further research focused on creating a working quantum computer. They then used their system to run two quantum algorithms-one that measured the molecular energy of a given atom, the other to work on the MaxCut problem. The other team entangled qubit pairs using laser beams to create a complex of six qubits in a Greenberger–Horne–Zeilinger state. One team entangled atoms that were not adjacent to one another using optical tweezers to move them around and then used them to demonstrate that the approach could be used to realize a well-established quantum information state. In the two new efforts, both research teams have shown that it is possible to use such an approach to create multi-qubit circuits they just went about it in different ways.īoth teams encoded the qubits in their machines in a low energy state but differed in how they handled them. The advantage of such an approach, as Williams notes, is that it would be much easier to scale to much larger systems-arrays of hundreds of neutral atoms have already been used to create logic gates. Because of that, some researchers have turned to studying the possibility of using neutral atoms in such a computer. But both approaches have proven difficult to scale up to large systems. Hannah Williams, with Durham University, has published a News
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